Electromagnetism is a notoriously difficult subject to teach. Although modern life is entirely enabled by electromagnetic effects, it is less intuitive to grasp electromagnetism compared with, say, mechanics, where it is possible to see all the parts of a system working, and to literally feel effects of forces or torque. Therefore, although electromagnetism is a very beautiful branch of physics with some elegant mathematics, it is deemed to be inaccessible by many students. At University level, there is a need for electrical and electronic engineers in particular to have a good...